Running with your dog can keep you fit, but needs to be done responsibly

As a fellow “dog runner” and longtime reader of the Guardian, I was intrigued, and subsequently disappointed, to read Zoe Williams’ article (The dog and I can run together – what could possibly go wrong?, Weekend, 15 December).

Antibiotics for Dogs: Not One-Size Fits All

Because bacterial cells have different equipment than human cells that they use to replicate and repair themselves, bacteriostatic antibiotics specifically target the replicating equipment in bacteria and stop their growth, dead in their tracks. Antibiotics cure bacterial infections, but what happens when they stop working?

Dog almost died after eating sausage roll packed with rat poison

How did dogs evolve to become a man's best friend?

Through the power of genomics, scientists at the University of Michigan compared the DNA of a dog and wolf to identify the genes involved in domestication. The researchers used statistical methods to tease out genetic changes of ancient dogs and wolves, found at burial sites from around 5,000 years ago.